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Sonolysis of Trichloroethylene in a Continuous Flow Reactor with the Multi Ultrasound Irradiation  

Lee, Min-Ju (Department of Civil & Environmental Engineering, Chung-Ang University)
Oh, Je-Ill (Department of Civil & Environmental Engineering, Chung-Ang University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.31, no.6, 2009 , pp. 419-427 More about this Journal
Abstract
To test applicability for continuous flow treatment of ultrasound technology, sonolysis of TCE aqueous solution using 584 kHz multi irradiation reactor was performed under batch and continuous flow conditions. Under batch condition (3 and 4 sides irradiation, 600 W), first order degradation rate constant of TCE was higher under 4 sides than 3 sides irradiation conditions, while the generation of $H_2O_2$ and chloride was similar under both irradiation conditions. Under continuous flow condition with 4 sides irradiation, removal efficiencies of TCE in steady-state were decreased from 83 to 48% with increasing flow rate from 67 to 300 mL/min at 600 W, and were increased from 14 to 75% with increasing acoustic power from 100 to 600 W at 100 mL/min. Removal efficiency of TCE in groundwater was decreased 10% compared to in distilled water at 100 mL/min and 600 W.
Keywords
Sonolysis; Multi-irradiation; Ultrasound; Continuous Flow Reactor; Trichloroethylene;
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